Traditional authentication mechanisms, such as password-based systems and multi-factor authentication (MFA), face escalating vulnerabilities in an era marked by sophisticated cyberattacks, quantum computing advancements, and evolving regulatory demands. Passwords, inherently prone to phishing, brute-force attacks, and credential reuse, remain a weak link in cybersecurity despite decades of incremental improvements. Meanwhile, emerging technologies like quantum computing threaten to dismantle classical cryptographic protocols, necessitating a paradigm shift in authentication frameworks. This paper proposes From Passwords to Qubits: Harnessing Entanglement for Next-Generation Authentication,” a novel approach that leverages the principles of quantum mechanics—specifically quantum entanglement—to design secure, scalable, and future-proof authentication systems. The implications of this research extend beyond cybersecurity: it lays the groundwork for a future where quantum entanglement underpins secure digital identities, blockchain systems, and IoT ecosystems. As quantum computing matures, the fusion of entanglement-driven authentication with classical protocols will be pivotal in safeguarding sensitive data against existential threats, heralding a new era of trust in the digital age.